A safe and comfortable folding diaper table

Abstract

A safe and comfortable folding diaper table comprises a support plate, a left guard plate, a right guard plate, a front support rod set and a rear support rod set, the front and rear support rod sets each comprise left and right support rods and a connecting joint, the left support rod is rotatably arranged with the connecting joint, the right support rod is fixedly connected with the connecting joint, rotatable support rods are arranged between the connecting joints of the front and rear support rod sets, the support plate is connected with the support rods, the left and right guard plates are respectively foldably arranged at the left and right ends of the support plate, a left connecting rod that can slide up and down is arranged between the left support rods of the front and rear support rod sets, a rotating linkage rod is arranged between the bottom of the support plate and the left connecting rod, the left support rods of the front and rear support rod sets are each provided with upper and lower locking holes on the side close to the left connecting rod, a locking piece is arranged in the front and rear ends of the left connecting rod, the locking piece can be inserted into the upper locking hole or the lower locking hole, and the locking piece can be automatically unlocked with the folding of the left guard plate.

Description

Technical Field

[0001] This utility model relates to the field of children's furniture, specifically to a safe and comfortable folding diaper changing table. Background Technology

[0002] A changing table is a piece of furniture or device specifically designed for changing diapers for infants or toddlers. Its purpose is to provide a safe, comfortable, and ergonomic platform, allowing parents or caregivers to change diapers, dress, or perform simple body care without excessive bending, thus greatly reducing strain on the lower back. Currently, patent CN219742300U discloses a baby changing table frame, including a support leg assembly, a seat assembly, and a frame assembly. The frame assembly includes a left frame rod and a right frame rod. The support leg assembly includes a left support leg and a right support leg. The seat assembly includes a left seat rod and a right seat rod, and a locking element. The left and right seat rods are rotatably connected via the locking element. The left and right support legs are hinged to the left and right seat rods, respectively. One end of the left and right frame rods, away from the support leg assembly, is rotatably connected to the left and right seat rods, respectively, and the other end is movably connected to the left and right support legs, respectively. The left and right frame rods are hinged together.

[0003] In the aforementioned patent, the support assembly is used to connect the diaper changing table cover. However, the support assembly has a hollow structure, and the diaper changing table cover does not have any other supporting beams. When the baby or toddler is placed on the diaper changing table, the diaper changing table cover often collapses downwards. This poses a significant safety hazard when using the diaper changing table. At the same time, the downward collapse of the diaper changing table cover fails to provide good support for the baby or toddler, and the baby or toddler will also feel uncomfortable when using it. Utility Model Content

[0004] This utility model provides a safe and comfortable folding diaper changing table. Its main purpose is to overcome the problems that existing folding diaper changing tables cannot provide good support for infants, resulting in safety hazards and discomfort during use.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A safe and comfortable folding diaper changing table includes a support plate, a left protective plate, a right protective plate, a front support rod assembly, and a rear support rod assembly. The front and rear support rod assemblies are symmetrically arranged front and rear. Each assembly includes a left support rod, a right support rod, and a connecting joint. The top of the left support rod is rotatably connected to the connecting joint, and the top of the right support rod is fixedly connected to the connecting joint. A rotatable support rod is provided between the connecting joints of the front and rear support rod assemblies. The support plate is connected to the support rod and located above it. The left protective plate is rotatable. The left protective plate is foldably located at the left end of the support plate, and the right protective plate is foldably located at the right end of the support plate. A left connecting rod that can slide up and down is provided between the left support rod of the front support rod group and the left support rod of the rear support rod group. Two rotatable linkage rods are provided between the bottom of the support plate and the left connecting rod. The left support rod of the front support rod group and the left support rod of the rear support rod group are provided with an upper locking hole and a lower locking hole on the side near the left connecting rod. Locking members are provided in the front and rear ends of the left connecting rod. The locking members can be inserted into the upper locking hole or the lower locking hole. The locking members can be automatically unlocked as the left protective plate is folded.

[0007] Furthermore, the left side of the left protective plate is provided with a left groove, and the right side of the left protective plate is provided with a pressable left button. The upper part of the left button is located in the left groove. The bottom of the left protective plate and the left end of the support plate are hinged. The left end of the support plate is provided with two first left cuts and two first left protrusions. The bottom of the left protective plate is provided with two second left cuts and two second left protrusions. Each first left protrusion corresponds to a second left cut and is located in the second left cut. Each second left protrusion corresponds to a first left cut and is located in the first left cut. Each of the two second left protrusions is provided with an elastic left pin. Each of the two first left protrusions is provided with a left pin hole. The left pin is inserted into the corresponding left pin hole. When the left button is pressed up, it causes the left pin in each of the second left protrusions to disengage from the corresponding left pin hole.

[0008] Furthermore, the upper part of the left groove is provided with a left button slot, and the right side of the left protective plate is provided with a left button groove communicating with the left button slot. The left button is provided in the left button groove, and the upper part of the left button is located in the left button slot and can abut against the bottom surface of the left button slot. The right side of the left protective plate is provided with a left cover plate for restricting the left button to move up and down only in the left button groove. A first left return spring is provided between the top of the left button and the inner top surface of the left button groove. The left button is connected to two first left pull cords, each of which corresponds to a left pin. The second left protrusion is provided with a left pin groove for the left pin to move. The left pin groove is covered with a left pin cover plate connected to the second left protrusion. The end of the first left pull cord away from the left button passes into the left pin groove and connects with the left pin. The left pin groove is provided with a left spring that abuts against the left pin, and the first left pull cord passes through the left spring.

[0009] Furthermore, both the right support rod of the front support rod group and the right support rod of the rear support rod group are provided with rod connectors. A right connecting rod is provided between the rod connectors on the right support rod of the front support rod group and the right support rod of the rear support rod group. A rotatable horizontal connecting rod is provided between the rod connectors on the right support rod of the front support rod group and the right support rod of the rear support rod group and the left connecting rod.

[0010] Furthermore, the outer periphery of the left connecting rod is fitted with two first rotating cylinders and two second rotating cylinders. Each first rotating cylinder corresponds to a horizontal connecting rod, which is connected between the corresponding first rotating cylinder and the rod connector. Each second rotating cylinder corresponds to a linkage rod, the top of which is hinged to the bottom of the support plate, and the bottom of which is fixedly connected to the second rotating cylinder. The outer periphery of the left connecting rod is fixedly fitted with two first limiting sleeves and two second limiting sleeves. Each first limiting sleeve is located between one end of the first rotating cylinder and one end of the second rotating cylinder, and each second limiting sleeve is located at the other end of the second rotating cylinder.

[0011] Furthermore, the left support rod of the front support rod assembly and the rear support rod assembly are provided with a slide rail on the side near the left connecting rod. The upper locking hole and the lower locking hole are located in the slide rail. Locking member mounting parts are provided in the front and rear ends of the left connecting rod. The locking member mounting part is provided with a receiving groove with an open top. The locking member is located in the receiving groove. A second left return spring that abuts against the locking member is provided in the receiving groove. The end of the locking member mounting part near the slide rail is provided with a sliding part that cooperates with the slide rail. The sliding part is located outside the left connecting rod. The end of the locking member extends out of the sliding part. Two second left pull ropes are connected to the right side of the left protective plate. Each second left pull rope corresponds to one locking member. The second left pull rope passes through the support plate, the linkage rod, the left connecting rod and the second left return spring and is connected to the locking member.

[0012] Furthermore, the right side of the left protective plate is provided with two pull rope fixing grooves, each pull rope fixing groove corresponding to a second left pull rope. The head of the second left pull rope is located in the pull rope fixing groove. The top surface of the pull rope fixing groove is connected to a pull rope cover plate. The support plate is provided with two first pull rope grooves and two second pull rope grooves. Each first pull rope groove and each second pull rope groove corresponds to a pull rope fixing groove. The pull rope fixing groove, the first pull rope groove and the second pull rope groove are connected in sequence. The second pull rope groove is connected to the linkage rod. The second left pull rope passes through the first pull rope groove and the second pull rope groove.

[0013] Furthermore, the right protective plate has a right groove on its right side and a pressable right button on its left side. The upper part of the right button is located in the right groove. The bottom of the right protective plate is hinged to the right end of the support plate. The right end of the support plate has two first right cuts and two first right protrusions. The bottom of the right protective plate has two second right cuts and two second right protrusions. Each first right protrusion corresponds to a second right cut and is located within the second right cut. Each second right protrusion corresponds to a first right cut and is located within the first right cut. Each of the two second right protrusions has a flexible right pin. Each of the two first right protrusions has a right pin hole. The right pin is inserted into the corresponding right pin hole. When the right button is pressed up, it causes the right pin in each of the second right protrusions to disengage from the corresponding right pin hole.

[0014] Furthermore, the upper part of the right groove is provided with a right button slot, and the left side of the right protective plate is provided with a right button groove communicating with the right button slot. The right button is provided in the right button groove, and the upper part of the right button is located in the right button slot and can abut against the bottom surface of the right button slot. The left side of the right protective plate is provided with a right cover plate for restricting the right button to move up and down only in the right button groove. A right reset spring is provided between the top of the right button and the inner top surface of the right button groove. The right button is connected to two first right pull cords, each of which corresponds to a right pin. The second right protrusion is provided with a right pin groove for the right pin to move. The right pin groove is covered with a right pin cover plate connected to the second right protrusion. The end of the first right pull cord away from the right button passes into the right pin groove and connects with the right pin. The right pin groove is provided with a right spring that abuts against the right pin, and the first right pull cord passes through the right spring.

[0015] Furthermore, the right support rods of both the front support rod group and the rear support rod group are fixedly connected with hinges. The hinges are provided with hinge slots with open tops. A storage basket is provided between the right support rods of the front support rod group and the rear support rod group. The front and rear ends of the storage basket each correspond to a hinge slot and are respectively hinged in the corresponding hinge slots.

[0016] As can be seen from the above description of the utility model, compared with the prior art, the present utility model has the following advantages: The present utility model uses a support plate as a support plate for infants and young children, which will not collapse downwards, making it safer and more comfortable for infants and young children to use. The left and right protective plates can provide good protection for infants and young children, preventing them from falling off the diaper changing table. When the diaper changing table is not in use, it can be folded. When folding, first fold the left and right protective plates. After the left protective plate is folded, the locking pieces in the front and rear ends of the left connecting rod can be pulled to separate from the corresponding upper locking holes. At this time, the left and right support rods of the front support rod group and the rear support rod group can perform a retracting action towards each other. At the same time, the support rods and support plates rotate to fold. Under the drive of the two linkage rods, the left connecting rod slides downwards when the support plate is folded. When the locking piece is inserted into the lower locking hole, the diaper changing table is folded into place. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the present invention.

[0018] Figure 2 This is a structural diagram of the present invention from another angle.

[0019] Figure 3 This is a structural diagram of the present invention from another angle.

[0020] Figure 4 This is an exploded view of the structure of the left protective plate and the support plate of this utility model.

[0021] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle.

[0022] Figure 6 for Figure 4 A magnified view of a section at point B.

[0023] Figure 7 This is a diagram showing the connection structure between the left button and the left latch of this utility model.

[0024] Figure 8 This is a structural diagram of the left button of this utility model.

[0025] Figure 9 This is a connection structure diagram of the left connecting rod and the locking mounting component of this utility model.

[0026] Figure 10 for Figure 9 Partial structural decomposition diagram.

[0027] Figure 11 This is a structural diagram of the left support rod of this utility model.

[0028] Figure 12 for Figure 4A magnified view of a section at point C.

[0029] Figure 13 This is an exploded view of the right protective plate and support plate of this utility model.

[0030] Figure 14 for Figure 13 A magnified view of a section at point D.

[0031] Figure 15 for Figure 13 A magnified view of a section at point E in the middle.

[0032] Figure 16 This is a diagram showing the connection structure between the right button and the right latch of this utility model.

[0033] Figure 17 This is a structural diagram of the right button of this utility model.

[0034] Figure 18 This is a diagram of the folded state of this utility model. Detailed Implementation

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Reference Figure 1 , Figure 3 , Figures 9 to 11 A safe and comfortable folding diaper changing table includes a support plate 1, a left protective plate 2, a right protective plate 3, a front support rod assembly 4, and a rear support rod assembly 5. The front support rod assembly 4 and the rear support rod assembly 5 are symmetrically arranged front and rear. Each assembly includes a left support rod 6, a right support rod 7, and a connecting joint 8. The top of the left support rod 6 is rotatably connected to the connecting joint 8. Specifically, the bottom of the connecting joint 8 has a hinge interface 81, and the top of the left support rod 6 is hinged within the hinge interface 81, allowing it to rotate within the hinge interface 81. The top of the right support rod 7 is fixedly connected to the connecting joint 8. A rotatable support rod 9 is provided between the connecting joint 8 of the front support rod assembly 4 and the connecting joint 8 of the rear support rod assembly 5. Specifically, the connecting joint 8 is connected to a rotatable cylinder 82, and the support rod 9 is connected between the cylinders 82 on the two connecting joints 8. The support plate 1 is connected to the cylinder 82 and the support rod 9 by rivets and is located above the support rod 9. The rotation method of the cylinder 82 and the connecting joint 8 is the existing method and will not be described in detail here. The left protective plate 2 is foldably disposed at the left end of the support plate 1, and the right protective plate 3 is foldably disposed at the right end of the support plate 1. A left connecting rod 10 that can slide up and down is provided between the left support rod 6 of the front support rod group 4 and the left support rod 6 of the rear support rod group 5. Two rotatable linkage rods 11 are provided between the bottom of the support plate 1 and the left connecting rod 10. The left support rod 6 of the front support rod group 4 and the left support rod 6 of the rear support rod group 5 are provided with an upper locking hole 12 and a lower locking hole 13 on the side near the left connecting rod 10. Locking members 14 are provided in the front and rear ends of the left connecting rod 10. The locking members 14 can be inserted into the upper locking hole 12 or the lower locking hole 13. The locking members 14 can be automatically unlocked as the left protective plate 2 is folded. The surfaces of the support plate 1, the left protective plate 2, and the right protective plate 3 are all covered with soft padding to improve the comfort of the baby.

[0039] Reference Figure 1 , Figure 2 , Figures 4 to 8The left protective plate 2 has a left groove 15 on its left side and a left button 16 that can be pressed up on its right side. The upper part 161 of the left button 16 is located in the left groove 15. The bottom of the left protective plate 2 and the left end of the support plate 1 are hinged. The hinge method between the left protective plate 2 and the support plate 1 is existing technology and will not be described in detail here. The left end of the support plate 1 is provided with two first left cuts 17 and two first left protrusions 18. The bottom of the left protective plate 2 is provided with two second left cuts 19 arranged front to back and two second left protrusions 20 arranged front to back. Each first left protrusion 18 corresponds to a second left cut 19 and is located inside the second left cut 19. Each second left protrusion 20 corresponds to a first left cut 17 and is located inside the first left cut 17. Each of the two second left protrusions 20 is provided with an elastic left pin 21. Each of the two first left protrusions 18 is provided with a left pin hole 181. The end 211 of the left pin 21 passes through the second left protrusion 20 and is inserted into the corresponding left pin hole 181. When the left button 16 is pressed up, it causes the left pin 21 in each of the second left protrusions 20 to disengage from the corresponding left pin hole 181.

[0040] Reference Figure 1 , Figure 2 , Figures 4 to 8 The upper part of the left groove 15 is provided with a left button slot 151. The right side of the left protective plate 2 is provided with a left button groove 22 communicating with the left button slot 151. The left button 16 is provided in the left button groove 22. The upper part 161 of the left button 16 is located in the left button slot 151 and can abut against the bottom surface of the left button slot 151. Specifically, when the left button 16 is not pressed, the upper part 161 of the left button 16 abuts against the bottom surface of the left button slot 151. The right side of the left protective plate 2 is provided with a left cover plate 23 for restricting the left button 16 to move up and down only in the left button groove 22. A first left return spring 162 is provided between the top of the left button 16 and the inner top surface of the left button groove 22. Two first left return springs 162 are provided. The left button 16 is connected to two first left pull cords 24, each first left pull cord 24 corresponding to a left pin 21. The second left protrusion 20 is provided with a left pin groove 201 for the left pin 21 to move. The left pin groove 201 is covered with a left pin cover plate 25 connected to the second left protrusion 20. The end of the first left pull cord 24 away from the left button 16 passes into the left pin groove 201 and connects with the left pin 21. The left pin groove 201 is provided with a left spring 26 that abuts against the left pin 21. The first left pull cord 24 passes through the left spring 26.

[0041] Reference Figure 1 , Figure 2 , Figures 4 to 8When the left protective plate 2 is in the unfolded state, the ends 211 of the two left pins 21 are inserted into the corresponding left pin holes 181, and the left protective plate 2 cannot be folded at this time. When the left protective plate 2 needs to be folded, the left button 16 is pressed up. At this time, the left button 16 pulls the two left pins 21 in opposite directions through the two first left pull ropes 24, so that the ends 211 of the two left pins 21 disengage from the corresponding left pin holes 181, and the left protective plate 2 can be folded at this time. When the left button 16 is released, the left button 16 and the left pins 21 automatically return to their original positions under the action of the first left return spring 162 and the left spring 26.

[0042] Reference Figure 1 and Figure 2 Both the right support rod 7 of the front support rod group 4 and the right support rod 7 of the rear support rod group 5 are equipped with rod connectors 27. A right connecting rod 57 is provided between the rod connectors 27 on the right support rod 7 of the front support rod group 4 and the right support rod 7 of the rear support rod group 5. A rotatable horizontal connecting rod 28 is provided between the rod connectors 27 on the right support rod 7 of the front support rod group 4 and the right support rod 7 of the rear support rod group 5 and the left connecting rod 10. The left connecting rod 10, the right connecting rod 57, and the two horizontal connecting rods 28 can also be connected to a storage cover, so that baby products can be placed inside the storage cover.

[0043] Reference Figure 1 and Figure 3 The left connecting rod 10 is fitted with two first rotating cylinders 29 and two second rotating cylinders 30. Each first rotating cylinder 29 corresponds to a horizontal connecting rod 28, which connects the corresponding first rotating cylinder 29 and the rod connector 27. Each second rotating cylinder 30 corresponds to a linkage rod 11, the top of which is hinged to the bottom of the support plate 1, and the bottom of which is fixedly connected to the second rotating cylinder 30. The left connecting rod 10 is also fitted with two first limiting sleeves 31 and two second limiting sleeves 32. Each first limiting sleeve 31 is located between one end of the first rotating cylinder 29 and one end of the second rotating cylinder 30, and each second limiting sleeve 32 is located at the other end of the second rotating cylinder 30.

[0044] Reference Figure 1 , Figure 2 , Figure 4 , Figures 9 to 12The left support rod 6 of the front support rod group 4 and the rear support rod group 5 is provided with a slide rail 61 on the side near the left connecting rod 10. The upper locking hole 12 and the lower locking hole 13 are provided in the slide rail 61. The front and rear ends of the left connecting rod 10 are provided with locking member mounting parts 33. The locking member mounting parts 33 are provided with a receiving groove 331 with an open top. The locking member 14 is located in the receiving groove 331. The receiving groove 331 is provided with a second left return spring 34 that abuts against the locking member 14. The end of the locking member mounting parts 33 near the slide rail 61 is provided with a sliding part 332 that cooperates with the slide rail 61. The sliding part 332 is located outside the left connecting rod 10. The end of the sliding part 332 near the left connecting rod 10 forms a contact part 333 that abuts against the left connecting rod 10 and the first rotating cylinder 29. The end 141 of the locking member 14 extends out of the sliding part 332 and is inserted into the upper locking hole 12 or the lower locking hole 13. Two second left pull ropes 35 are connected to the right side of the left protective plate 2. Each second left pull rope 35 corresponds to a locking member 14. The second left pull rope 35 passes through the support plate 1, the linkage rod 11, the left connecting rod 10, and the second left return spring 34 and is connected to the locking member 14.

[0045] Reference Figure 1 , Figure 2 , Figure 4 , Figures 9 to 12 The right side of the left protective plate 2 is provided with two pull rope fixing grooves 36, each pull rope fixing groove 36 corresponding to a second left pull rope 35. The head of the second left pull rope 35 is located inside the pull rope fixing groove 36, and the top surface of the pull rope fixing groove 36 is connected to a pull rope cover plate 37. The support plate 1 is provided with two first pull rope grooves 38 and two second pull rope grooves 39, each first pull rope groove 38 and each second pull rope groove 39 corresponding to a pull rope fixing groove 36. The pull rope fixing groove 36, the first pull rope groove 38 and the second pull rope groove 39 are connected in sequence. The second pull rope groove 39 is connected to the interior of the linkage rod 11, and the second left pull rope 35 passes through the first pull rope groove 38 and the second pull rope groove 39. Specifically, one end of the second left pull rope 35 is fixed in the pull rope fixing groove 36 and then locked by the pull rope cover plate 37. The other end of the second left pull rope 35 passes through the first pull rope groove 38, the second pull rope groove 39, the linkage rod 11 and the locking member mounting member 33 in sequence and is connected to the locking member 14.

[0046] Reference Figure 1 , Figure 2 , Figure 4 , Figures 9 to 12When the changing table is in use, the end of the locking member 14 is inserted into the upper locking hole 12. When the left protective plate 2 is folded, the left protective plate 2 can pull the two second left pull ropes 35, thereby pulling the locking members 14 in the front and rear ends of the left connecting rod 10 to move in opposite directions, so that the end 141 of the locking member 14 disengages from the upper locking hole 12. At this time, the left support rod 6 and the right support rod 7 of the front support rod group 4 and the rear support rod group 5 can move in opposite directions to retract. At the same time, the support rod 9 and the support plate 1 rotate to fold. Driven by the two linkage rods 11, the left connecting rod 10 slides down along the slide rail 61 when the support plate 1 is folded. At the same time, the first rotating cylinder 29 and the second rotating cylinder 30 rotate. The two linkage rods 11 and the two horizontal connecting rods 28 rotate and fold synchronously. When the left connecting rod 10 slides down to the bottom, the end of the locking member 14 is inserted into the lower locking hole 13. At this time, the changing table is folded in place. The contact part 333 and the first limiting sleeve 31 are used to restrict the first rotating cylinder 29 to rotate only around the left connecting rod 10 and not to move in the length direction of the left connecting rod 10; the first limiting sleeve 31 and the second limiting sleeve 32 are used to restrict the second rotating cylinder 30 to rotate only around the left connecting rod 10 and not to move in the length direction of the left connecting rod 10.

[0047] Reference Figure 1 , Figure 2 , Figures 13 to 17 The right protective plate 3 has a right groove 40 on its right side and a right button 41 that can be pressed up on its left side. The upper part 411 of the right button 41 is located in the right groove 40. The bottom of the right protective plate 3 and the right end of the support plate 1 are hinged. The hinge method between the right protective plate 3 and the support plate 1 is existing technology and will not be described in detail here. The right end of the support plate 1 has two first right cuts 42 arranged front to back and two first right protrusions 43 arranged front to back. The bottom of the right protective plate 3 has two second right cuts 44 arranged front to back and two second right protrusions 45 arranged front to back. Each first right protrusion 43 corresponds to one second right cut 44 and is located within the second right cut 44. Each second right protrusion 45 corresponds to one first right cut 42 and is located within the first right cut 42. Each of the two second right protrusions 45 is provided with a flexible right pin 46, and each of the two first right protrusions 43 is provided with a right pin hole 47. The end 461 of the right pin 46 passes through the second right protrusion 45 and is inserted into the corresponding right pin hole 47. When the right button 41 is pressed up, it causes the right pin 46 in each of the second right protrusions 45 to disengage from the corresponding right pin hole 47.

[0048] Reference Figure 1 , Figure 2 , Figures 13 to 17The upper part of the right groove 40 is provided with a right button slot 401. The left side of the right protective plate 3 is provided with a right button groove 48 communicating with the right button slot 401. The right button 41 is provided in the right button groove 48. The upper part 411 of the right button 41 is located in the right button slot 401 and can abut against the bottom surface of the right button slot 401. Specifically, when the right button 41 is not pressed, the upper part 411 of the right button 41 abuts against the bottom surface of the right button slot 401. The left side of the right protective plate 3 is provided with a right cover plate 49 for restricting the right button 41 to move up and down only in the right button groove 48. A right return spring 50 is provided between the top of the right button 41 and the inner top surface of the right button groove 48. There are two right return springs 50. The right button 41 is connected to two first right pull cords 51, each first right pull cord 51 corresponding to a right pin 46. The second right protrusion 45 is provided with a right pin groove 451 for the right pin 46 to move. The right pin groove 451 is covered with a right pin cover plate 52 connected to the second right protrusion 45. The end of the first right pull cord 51 away from the right button 41 passes into the right pin groove 451 and connects with the right pin 46. The right pin groove 451 is provided with a right spring 53 that abuts against the right pin 46. The first right pull cord 51 passes through the right spring 53.

[0049] Reference Figure 1 , Figure 2 , Figures 13 to 17 When the right protective plate 3 is in the unfolded state, the ends 461 of the two right pins 46 are inserted into the corresponding right pin holes 47, and the right protective plate 3 cannot be folded at this time. When the right protective plate 3 needs to be folded, the right button 41 is pressed up. At this time, the right button 41 pulls the two right pins 46 in opposite directions through the two first right pull ropes 51, so that the ends 461 of the two right pins 46 disengage from the corresponding right pin holes 47, and the right protective plate 3 can be folded at this time. When the right button 41 is released, the right button 41 and the right pins 46 automatically return to their original positions under the action of the right return spring 50 and the right spring 53.

[0050] Reference Figure 1 and Figure 2 The right support rod 7 of both the front support rod assembly 4 and the rear support rod assembly 5 is fixedly connected to a hinge member 54. The hinge member 54 has a hinge groove 541 with an open top. A storage basket 55 is provided between the right support rods 7 of the front support rod assembly 4 and the rear support rod assembly 5. The front and rear ends of the storage basket 55 each correspond to a hinge groove 541, and are respectively hinged within the corresponding hinge groove 541. The storage basket 55 is used to connect a storage bag for placing baby supplies.

[0051] Reference Figure 1The bottom of the left support rod 6 and the bottom of the right support rod 7 are both equipped with casters 56 to facilitate the movement of the diaper changing table. At the same time, the left support rod 6 and the right support rod 7 are also more smoothly folded and unfolded.

[0052] Reference Figures 1 to 18 The working process of this utility model is as follows: When the diaper changing table is in use, the left protective plate 2 and the right protective plate 3 are in the unfolded state, and the left support rod 6 and the right support rod 7 of the front support rod group 4 and the right support rod group 5 are in the unfolded state. When the diaper changing table needs to be folded, first press the left button 16. At this time, the left button 16 pulls the two left pins 21 in opposite directions through the two first left pull ropes 24, so that the two left pins 21 disengage from the corresponding left pin holes 181, and the left protective plate 2 can be folded at this time; then press the right button 41. At this time, the right button 41 pulls the two right pins 46 in opposite directions through the two first right pull ropes 51, so that the two right pins 46 disengage from the corresponding right pin holes 47, and the right protective plate 3 can be folded at this time; when the left protective plate 2 is folded, the left protective plate 2 can pull the two second left pull ropes 35, thereby pulling the locking parts 14 in the front and rear ends of the left connecting rod 10 in opposite directions. The movement causes the end of the locking member 14 to disengage from the upper locking hole 12. At this time, the left support rod 6 and the right support rod 7 of the front support rod group 4 and the rear support rod group 5 can retract towards each other. At the same time, the support rod 9 and the support plate 1 rotate to fold. Driven by the two linkage rods 11, the left connecting rod 10 of the support plate 1 slides down along the slide rail 61 when folding. At the same time, the first rotating cylinder 29 and the second rotating cylinder 30 rotate. The two linkage rods 11 and the two horizontal connecting rods 28 rotate and fold synchronously. When the left connecting rod 10 slides down to the bottom, the end of the locking member 14 is inserted into the lower locking hole 13. At this time, the diaper changing table is folded in place. Finally, the storage basket 55 is folded.

[0053] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A safe and comfortable folding diaper changing table, characterized in that: The system includes a support plate, a left protective plate, a right protective plate, a front support rod assembly, and a rear support rod assembly. The front and rear support rod assemblies are symmetrically arranged front and rear. Each front and rear support rod assembly includes a left support rod, a right support rod, and a connecting joint. The top of the left support rod is rotatably connected to the connecting joint, and the top of the right support rod is fixedly connected to the connecting joint. A rotatable support rod is provided between the connecting joints of the front and rear support rod assemblies. The support plate is connected to the support rod and located above the support rod. The left protective plate is foldable and mounted on the support plate. At the left end, the right protective plate is foldably disposed at the right end of the support plate. A left connecting rod that can slide up and down is provided between the left support rod of the front support rod group and the left support rod of the rear support rod group. Two rotatable linkage rods are provided between the bottom of the support plate and the left connecting rod. The left support rod of the front support rod group and the left support rod of the rear support rod group are provided with an upper locking hole and a lower locking hole on the side near the left connecting rod. Locking members are provided in the front and rear ends of the left connecting rod. The locking members can be inserted into the upper locking hole or the lower locking hole. The locking members can be automatically unlocked as the left protective plate is folded.

2. The folding diaper changing table as described in claim 1, characterized in that: The left protective plate has a left groove on its left side and a pressable left button on its right side. The upper part of the left button is located in the left groove. The bottom of the left protective plate is hinged to the left end of the support plate. The left end of the support plate has two first left cuts and two first left protrusions. The bottom of the left protective plate has two second left cuts and two second left protrusions. Each first left protrusion corresponds to a second left cut and is located within the second left cut. Each second left protrusion corresponds to a first left cut and is located within the first left cut. Each of the two second left protrusions has a flexible left pin. Each of the two first left protrusions has a left pin hole. The left pin is inserted into the corresponding left pin hole. When the left button is pressed up, it causes the left pin in each of the second left protrusions to disengage from the corresponding left pin hole.

3. A safe and comfortable folding diaper changing table as described in claim 2, characterized in that: The upper part of the left groove is provided with a left button slot. The right side of the left protective plate is provided with a left button groove communicating with the left button slot. The left button is provided in the left button groove. The upper part of the left button is located in the left button slot and can abut against the bottom surface of the left button slot. The right side of the left protective plate is provided with a left cover plate to restrict the left button to move up and down only in the left button groove. A first left return spring is provided between the top of the left button and the inner top surface of the left button groove. The left button is connected to two first left pull cords, each of which corresponds to a left pin. The second left protrusion is provided with a left pin groove for the left pin to move. The left pin groove is covered with a left pin cover plate connected to the second left protrusion. The end of the first left pull cord away from the left button passes into the left pin groove and connects to the left pin. The left pin groove is provided with a left spring that abuts against the left pin. The first left pull cord passes through the left spring.

4. A safe and comfortable folding diaper changing table as described in claim 1, characterized in that: Both the right support rod of the front support rod group and the right support rod of the rear support rod group are provided with rod connectors. A right connecting rod is provided between the rod connectors on the right support rod of the front support rod group and the right support rod of the rear support rod group. A rotatable horizontal connecting rod is provided between the rod connectors on the right support rod of the front support rod group and the right support rod of the rear support rod group and the left connecting rod.

5. A safe and comfortable folding diaper changing table as described in claim 4, characterized in that: The outer periphery of the left connecting rod is fitted with two first rotating cylinders and two second rotating cylinders. Each first rotating cylinder corresponds to a horizontal connecting rod, which is connected between the corresponding first rotating cylinder and the rod connector. Each second rotating cylinder corresponds to a linkage rod, the top of which is hinged to the bottom of the support plate, and the bottom of which is fixedly connected to the second rotating cylinder. The outer periphery of the left connecting rod is fixedly fitted with two first limiting sleeves and two second limiting sleeves. Each first limiting sleeve is located between one end of the first rotating cylinder and one end of the second rotating cylinder, and each second limiting sleeve is located at the other end of the second rotating cylinder.

6. A safe and comfortable folding diaper changing table as described in claim 1, characterized in that: The left support rod of the front support rod assembly and the rear support rod assembly are provided with a slide rail on the side near the left connecting rod. The upper locking hole and the lower locking hole are located in the slide rail. Locking member mounting parts are provided in the front and rear ends of the left connecting rod. The locking member mounting part is provided with a receiving groove with an open top. The locking member is located in the receiving groove. A second left return spring that abuts against the locking member is provided in the receiving groove. The end of the locking member mounting part near the slide rail is provided with a sliding part that cooperates with the slide rail. The sliding part is located outside the left connecting rod. The end of the locking member extends out of the sliding part. Two second left pull ropes are connected to the right side of the left protective plate. Each second left pull rope corresponds to one locking member. The second left pull rope passes through the support plate, the linkage rod, the left connecting rod and the second left return spring and is connected to the locking member.

7. A safe and comfortable folding diaper changing table as described in claim 6, characterized in that: The right side of the left protective plate is provided with two pull rope fixing grooves, each pull rope fixing groove corresponding to a second left pull rope. The head of the second left pull rope is located in the pull rope fixing groove. The top surface of the pull rope fixing groove is connected to a pull rope cover plate. The support plate is provided with two first pull rope grooves and two second pull rope grooves. Each first pull rope groove and each second pull rope groove corresponds to a pull rope fixing groove. The pull rope fixing groove, the first pull rope groove and the second pull rope groove are connected in sequence. The second pull rope groove is connected to the linkage rod. The second left pull rope passes through the first pull rope groove and the second pull rope groove.

8. A safe and comfortable folding diaper changing table as described in claim 1, characterized in that: The right protective plate has a right groove on its right side and a right button that can be pressed up on its left side. The upper part of the right button is located in the right groove. The bottom of the right protective plate is hinged to the right end of the support plate. The right end of the support plate has two first right cuts and two first right protrusions. The bottom of the right protective plate has two second right cuts and two second right protrusions. Each first right protrusion corresponds to a second right cut and is located within the second right cut. Each second right protrusion corresponds to a first right cut and is located within the first right cut. Each of the two second right protrusions has a flexible right pin. Each of the two first right protrusions has a right pin hole. The right pin is inserted into the corresponding right pin hole. When the right button is pressed up, it causes the right pin in each of the second right protrusions to disengage from the corresponding right pin hole.

9. A safe and comfortable folding diaper changing table as described in claim 8, characterized in that: The upper part of the right groove is provided with a right button slot. The left side of the right protective plate is provided with a right button groove communicating with the right button slot. The right button is provided in the right button groove. The upper part of the right button is located in the right button slot and can abut against the bottom surface of the right button slot. The left side of the right protective plate is provided with a right cover plate to restrict the right button to move up and down only in the right button groove. A right return spring is provided between the top of the right button and the inner top surface of the right button groove. The right button is connected to two first right pull cords, each of which corresponds to a right pin. The second right protrusion is provided with a right pin groove for the right pin to move. The right pin groove is covered with a right pin cover plate connected to the second right protrusion. The end of the first right pull cord away from the right button passes into the right pin groove and connects with the right pin. The right pin groove is provided with a right spring that abuts against the right pin. The first right pull cord passes through the right spring.

10. A safe and comfortable folding diaper changing table as described in claim 1, characterized in that: The right support rods of the front support rod group and the rear support rod group are both fixedly connected to hinges. The hinges are provided with hinge slots with open tops. A storage basket is provided between the right support rods of the front support rod group and the rear support rod group. The front and rear ends of the storage basket each correspond to a hinge slot and are respectively hinged in the corresponding hinge slots.

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